Lamp



FIG. 1 is a top view of a first embodiment of a lamp;

FIG. 2 is a front view of the first embodiment; rear and side views being mirror images;

FIG. 3 is a perspective view of the first embodiment; and,

FIG. 4 is a bottom view of the first embodiment. 

CLAIM The ornamental design for a lamp, as shown and described. 